S. Dhara, Datta A, Wu CT, Chen* KH, Wang YL, Muto S, Tanabe T, Shen CH, Hsu CW, Chen LC, Maruyama T.
2005.
Mechanism of nanoblister formation in Ga+ self-ion implanted GaN nanowires. Appl. Phys. Lett.. 86:203119-(1-3).
Kamal Hussien, M, Sabbah A, Qorbani M, Hammad Elsayed M, Raghunath P, Lin T-Y, Quadir S, Wang H-Y, Wu H-L, Tzou D-LM, Lin M-C, Chung P-W, Chou H-H, Chen L-C, Chen K-H.
2021.
Metal-free four-in-one modification of g-C3N4 for superior photocatalytic CO2 reduction and H2 evolution, 2021. Chemical Engineering Journal. :132853.
AbstractUtilization of g-C3N4 as a single photocatalyst material without combination with other semiconductor remains challenging. Herein, we report a facile green method for synthesizing a metal free modified g-C3N4 photocatalyst. The modification process combines four different strategies in a one-pot thermal reaction: non-metal doping, porosity generation, functionalization with amino groups, and thermal oxidation etching. The as-prepared amino-functionalized ultrathin nanoporous boron-doped g-C3N4 exhibited a high specific surface area of 143.2 m2 g−1 which resulted in abundant adsorption sites for CO2 and water molecules. The surface amino groups act as Lewis basic sites to adsorb acidic CO2 molecules, which can also serve as active sites to facilitate hydrogen generation. Besides, the simultaneous use of ammonium chloride as a dynamic gas bubble template along with thermal oxidation etching efficiently boosts the delamination of the g-C3N4 layers to produce ultrathin sheets; this leads to stronger light–matter interactions and efficient charge generation. Consequently, the newly modified g-C3N4 achieved selective gas-phase CO2 reduction into CO with a production yield of 21.95 µmol g-1, in the absence of any cocatalyst. Moreover, a high hydrogen generation rate of 3800 µmol g-1 h-1 and prominent apparent quantum yield of 10.6% were recorded. This work opens up a new avenue to explore different rational modifications of g-C3N4 nanosheets for the efficient production of clean energy.
Wen, CY, Wu JJ, Lo HJ, Chen LC, Chen KH, Lin ST, Yu Y-C, Wang C-W, Lin E-K.
2000.
Methylamine growth of SiCN films using ECR-CVD. Mat. Res. Soc. Symp.. :606,115-120.
Venugopal, B, Shown I, Samireddi S, Syum Z, Krishnamoorthy V, Wu H-L, Chu C-W, Lee C-H, Chen L-C, Chen K-H.
2021.
Microstructural intra-granular cracking in Cu2ZnSnS4@C thin-film anode enhanced the electrochemical performance in lithium-ion battery applications, 2021. Materials Advances. 2(17):5672-5685.: RSC
AbstractCu2ZnSnS4 (CZTS) has demonstrated excellent performance as an anode material for lithium-ion batteries. However, the repeated lithiation and delithiation create a cracking pattern and lead to island formation in the thin-film electrode, resulting in a capacity fading over cycling in lithium-ion batteries (LIB's). In order to control this crack behaviour, we introduce carbon into CZTS thin-films by a hydrothermal method to form CZTS@C composite. CZTS@C significantly reduced the crack pattern formation on the electrode surface as well as improved the conductivity of the CZTS@C electrode. At the early stages of lithiation and delithiation, the volume expansion and contraction of Li–CZTS@C create intra-granular cracking only at the surface level, and it offers a high capacity of about 785 mA h g−1 after 150 cycles at 1000 mA g−1 charging rate, excellent rate capability (942 mA h g−1, 678 mA h g−1 and 435 mA h g−1 at 500 mA g−1, 2000 mA g−1 and 5000 mA g−1), and superior cyclability (925 mA h g−1 even after 200 cycles at 500 mA g−1). The excellent electrochemical performance at high-current rates can be attributed to intra-granular cracking together with carbon coating that provides a short transportation length for both lithium ions and electrons. Moreover, the controlled cracking pattern formation in CZTS@C facilitates faster reaction kinetics, which open up a new solution for the development of high-power thin-film anodes for next-generation LIBs applications.